Hi!I managed to get Arduino to work on Ubuntu 8.10. Meaning I can write and compile programs with it, but when I want to upload the program to my Arduino Diecimila I can't do it due to the fact that the serial port menu is grayed out. Also, when I plug the Diecimila into my computer, nothing happens, the lights don't go on, etc.

I have installed all the packages required, even changing the Java version to that of Sun's.

I know that on earlier versions of Ubuntu, a bug in the brltty package forced the arduino to be recognized as a braille device. I think it was fixed before Ubuntu 8.10 was released but, just in case, you can remove that package (always assuming that no one using that computer needs to use a braille device).

I changed my permissions, tried it, but it didn't work. I even tried restarting my computer, still no luck. I think I'm going to try asking on the Ubuntu Forums, maybe there's a file I have to change to allow Arduino to use the USB Ports...

I feel sooo f-ing stupid!! [smiley=lipsrsealed.gif] It's been awhile since I have used the Arduino, but the whole problem was that I had the power supply on 'EXT' instead of 'USB'!!!! So everything works great now, serial port is showing up in the Arduino software, lights are blinking on the hardware, I have yet to test if I'm able to upload a program, but I'm not expecting any problems.

So, I'm so sorry for wasting everyone's time! :-/So just for future reference (for whoever happens to read this post), if you have communications problems with your Arduino, check to see that the power supply is on 'USB' and NOT -I repeat- NOT on 'EXT'!